Railway-car door.



No. 802,874. PATENTBD OCT. 24, 1905; M. G. NICHOLSON.

RAILWAY GAR DOOR.

APPLICATION FILED JUNE 29,1905.

MMiogM/Ww VAX/5W Wilrzeases. [mentor UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed June 29, 1905. Serial No. 267,677.

To all whom it may concern:

Be it known that I, MALCOLM GooDINe NIGH- OLSON, elevatorweighing-clerk, of the town of Goderich, in the county of Huron andProvince of Ontario, Oanad a, have invented certain new and usefulImprovements in Railway- Car Doors; and I do hereby declare that thefollowing is afull, clear, and exact description of the same.

My invention relates to improvements in the doors of railway-cars usedfor shipping grain or other similar commodities in bulk; and the objectsof my improvements are, first, to reduce the time occupied in loadingand unloading cars; second, to effect a saving of expense in the cost ofthe same, and, third, to prevent the possibility of loss of bulkcommodities, such as wheat, in course of shipment. I attain theseobjects by the mechanism illustrated in the accompanying drawings, inwhich Figure 1 is an external elevation of a car door and frame. Fig. 2is an internal elevation of door. Fig. 3 is a vertical section throughthe door and part of a car on line 1 2, Figs. 2 and 4:. Fig. 4 is asectional plan through lower part of door. Fig. 5 is a section throughdoor-frame and door, showing fastening device. Fig. 6 is a verticalsection of same.

Similar letters refer to similar parts throughout the several views.

The door, made of wood, metal, or other suitable material, is in twoparts, the lower, I) t, hinged or otherwise attached at a a to the upperpart 5. which is hung by hinges on mor other suitable device and in sucha way that b b folds over 6 and the whole can be swung on the hinge m mup to ceiling of car and there held up by hooks, staple, or any othersufficient fastening. Thejoints between parts of doors are rabbeted, andthe lower edge of t b is also rabbeted out to fit over iron plate orthreshold of door. In the upper doorb is the loading-door D, rabbetedall round and hinged on top, so as to open inward, fastened by button orcatch at a, and is secured open by means of books, staples, or otherordinary device. In the lower door 7) Z) are the discharging-doors 0 cc,rabbeted all round,hinged on sides, as at 0 0, and opening outwardly.One door 06 has attached to it a vertical plate 71/, overlapping thejoints of both doors 6 and co in the mullionf. Attached to plate it arespindles G G, having a hollow nut threaded internally to receive thethreaded pin I and on outside of plate washer and drop-handle 70. Byturning out 9 round, by means of the handle 71:, on the fixed pin I thedoors are closed tightly into their rabbets. The lower part of door 6 bis held in similar manner by means of the fixed bolts inserted intoframe, and the nuts g and handles in 7 on inside of door.

. What I claim as my invention, and desire to secure by Letters Patent,is-

The combination with a car having a dooropening, of a door hinged at thetop of the opening and comprising an upper section and a lower sectionhinged thereto, said lower section having a rabbet-joint with said uppersection and also with the sill of the doorway the door adapted to fitclosely to the inner side of the door-frame and each section having adoor rabbeted all around therein, and a means for clamping the doortightly in place comprising a fixed bolt in the frame and a revolublenut provided with a handle mounted on the door, all substantially as setforth.

Goderich, Ontario. June 26, 1905.

MALCOLM G-OODING NICHOLSON.

Witnesses:

FRANK PRETTY, Ti-ioMAs WILLIAM NAIRN.

